Power-transmitting mechanism.



A. SUNDH.

POWER TRANSMITTING MEGHANISM. APPLICATION FILED MAR.21.19|4.

1,228,145., y Patented May 29,1917.

- //V l/ENTOR UNTTED sTATEs PATENT oEEiCE.

AUGUST sUNDH, or HAsTINGs-uroN-HUDSON, NEW YonK, AssIGNon To oTIs y'ELEv-ATOE ooMrANY, A `ooar'omvrroiv or NEW JERSEY.

POWER-TRANSMITTING MECHANSM.

Specification of Letters Patent.

Patented May 2,9, 1917.

Application filed March 21, 1914. Seria1No.'826,167,

T0 all whom z't may concern.' p

Be it known that I, AUosT SUNDH, acitizen ofthe United States, residingin Has-- tings-upon-Hudson, in the county of lVestchester and State ofNew York, have invent' ed a new and-useful Improvement in Power-Transmitting Mechanism, of which the following is a specification.

My inventionrelates to powertransmitting apparatus comprising spurgearing, and the object thereof is .to provide a yielding connectionbetween a driving shaft and driving pinion, and to associate with thelatter a novel system of gearing for transmitting power from thedriving" shaft to a driven shaft, Ythe arrangement being such that thedriving pinion is kept-in proper adjustment with the power transmittinggears, independently .of the driving shaft. Other objects of theinvention will appear lmore fully hereinafter, the novel combinationsand arrangements of parts being pointed out in the appended claims. j

In the accompanying drawings which illustrate constructions embodying myin'- vention, Figure 1 is a front view ofan apparatus arranged inaccordance with the present invention; Fig. 2 is a sectional view ofFig. 1 taken on the line 1 1; Figs. 3, 4 and 5, show the application ofmy invention in various modified forms. y

The power transmitting gearing shown in Figs. 1 and 2 comprises a shaftA, which may be termed the driving shaft, said shaft being suitablyjournaled in a standard bearing 2. Thel shaft B which maylikewise betermed the driven shaft, is supported 'in a bearing 3 formed in aAstationary annular ring C, which is `suitably supported by standards 4Aformed integrally therewith. Intermediate gearing, comprising spurgears, etc., forms a driving connection between the shafts A and B, sothat when the shaft A is driven at a high speed, the motion will betransmitted to the shaft B., and operate the latter at a reduced speed.The shaft .A is adapted'to be connected'to any suitable source of power,such as for eX- ample, an electric motor or a gas engine, and the shaftB may be connected to operate any desired mechanism.

A driving pinion D is yieldingly connect- 4 ed to the drive shaft A,said'connection comyA. The spider 5 consists of lugs G, which {it-intocorresponding openings 7 in the pinion'D. The faces ofthe openings 7which oppose the facesr of the lugs 6, are lined with members 8, whichmay be of any suitable yielding material, such as for example, leatheror rubber or thin sheet steel. It will be' noted that the very smallspaces 9 permit a small relative movement of the pinion D.

In order now to transmit power from the driving shaft Ato the drivenshaft B, I 'pro- 4vide a novel system of gearing arranged as follows:Spur gears E, F and Gr are supported by pins 10 0n ran annular plate l1,which isv fixed tothe drivenshaft vB. The spur gears are radiallydisposed 120 apart on the plate -11, land mesh with the driving pinf4ioni D. These gears alsomesh with'a gear C formed on the :innerperiphery of the ring C. j Theoperation is as follows: The rotation ofthe driving shaft A imparts lmovement through the yielding connection tothe driving pnnon'D which acts as a positive drivv8() ing means torotate the gears E, F and Gr, therebyv causing the same4 to travel'around the annular gear C. The gears' E, F and G carry with them theplate 11, thereby rotating the driven shaft B at a greatly re--ducedspeedtothat of the driving shaft A.

It will now be seen that theyielding connection thus provided permits amovement of the pinion D relative to the driving shaft A, andfurthermorethe spur gears E, JF and G keep the pinion D in properadjustment or in alinement therewith, independently of the driving shaftA.

In the modification shown in 4, the driving pinion D, drives the drivenshaft `B directly.

lVith this arrangement the pinion D is yieldingly connected with themembers A and A which comprise the driving shaft, said connectioncomprising members 12 and 13 which are fixed .to the shafts'A andl A',respectively. The pinion D is positively connected with said members bymeans of lugs 14 and 15 formed integrall with the pinion D and member12, respectively, these lugs fitting loosely into slots 14 and 1Q in themember 13 and pinion Dlrespectively. The faces of the slots 14 and 16which oppose `the faces of the lugs 14.7.and 15, respectively,

are lined with yielding material as in the Figs. 'a and' atl l with the`ear the gears 17 and 18 serving as i 1ers. The gear 19 rotates thedriven shaft B and may be of any diam-.

eter to 'obtain a lreduction inspeed desired between the driving shaft Aand the driven i shaft. The gears 17 and 18 in this instance servesimply as idlers', and together with the ,gear '19, serve to float thepinion D therei between,l thereby Akeeping the latter in properadjustment therewith, independ- 'ently of thel driving shaft A.

the modification 'shown in Fig. 5, the

i- .Lhub ofthe driving gear D is corrugated or wavedand a stripk20 ofspring steel or orl more layers between said parts. lThis forms anelastic 'or self adjusting connection between the hub 'and pinion D. Thespecific 4construction and operation of this jconnectionare .disclosedin my- Patent, No. ''1,0I.L7,81$ granted lFebruary 20, 1912. `(.lrears21 and 22 mesh with. the driving pinion D, and serve only as idlers,while.y

gears 23and 24 which carry on their shafts the vgears 23- and 24',respectively, transmit pwerfromV the. driving pinion D to a gear 25which meshes .with the gears 23 and 2 4. i

The gear k25 inthis instance is carried by 'the .driven shaft B, and thelatter it'will be aoseenwill operate at a reduced speed 'from that -ofthe driving shaft A. .The lpinion .D being yieldable is kept inalinement Vor in proper-adjustment with the power trans- -mitting gearsbythe latter together with the idlers 21 -and22, and independently ofthe driving shaft Af 'It isobvious that variousother modiications mightbe made by those skilled in the .driven shaft, said gearing bein othersuitable material is interposed in one I \2. The combination of adriving shaft, a driven shaft, a yieldable pinion carried by the drivingshaft, andv means for transmit- -ting power from the'pinion to thedriven shaft, said meansA being arranged to aline the pinion-with .thedriving shaft and independently thereof. l e

' 3.1The combination ofa driving shaft, a

driven shaft, a yieldable pinion carried by the driving shaft, andgearing for transmitting power from said pinion to the arranged to alinesaid pinion with the driving shaft and independently thereof..

4. The combination of a driving shaft, a driven shaft, a yieldablevpinion carried by the driving shaft, Vand reduction.4 gearing e fortransmitting power from the pinion to the drivenshaft, said gearingbeing arranged to float said pinion and .cause the latter to alineitself with the driving shaft independently thereof.

5. rlhe combination of adriving shaft, a driven shaft, a. yieldablepinion carried by the` driving shaft, spurv gears meshing wit-h saidpinion Aand arranged to aline the same with the driving shaft andindependently thereof, and a drivin connection between said spurgearsand te driven shaft.

6. The combination of a driving shaft, a 'driven shaft, a yieldablepinion carried by the driving shaft, spur gears meshing with said pinionand arranged to alinethe same with the drivingshaft and independentlythereof, and a driving connection between the spur gearsV and the drivenshaft for rotating the same at a reduced speedfrom ,that of the drivingshaft.

7. The combination of a driving shaft, a driven shaft, a yieldablepinion carried by thedriving shaft, and planetary spur gearingbetweensaid pinion and the driven shaft, 'said gearing beingy arranged to causesaid pinion to laline itself with the drive shaft and -independentlythereof.

In testimony whereof, I have signed my name to this specification in thepresence of two subscribing witnesses.

AUGUST SUNDH.

Witnesses: y

WALTER C. STRANG, JAMES'G. BETEELL.

